Portable sauna



FIG. 1 is a perspective view of the portable sauna of the present design.

FIG. 2 is a front side elevation view of the of the portable sauna of FIG. 1.

FIG. 3 is a left side elevation view of the of the portable sauna of FIG. 1.

FIG. 4 is a top plan view of the portable sauna of FIG. 1.

FIG. 5 is a back side elevation view of the portable sauna of FIG. 1; and,

FIG. 6 is a bottom plan view of the portable sauna of FIG. 1. 

The ornamental design for a portable sauna, as shown and described. 